When looking for alternative terms to describe a space without windows, one might consider synonyms to broaden their vocabulary choices. "Unwindowed" refers to an area, room, or enclosure devoid of windows. To express this concept differently, one could use terms like "windowless", which conveys the absence of windows in a straightforward manner. Alternatively, "light-deprived" or "lacking natural light" could be used to emphasize the absence of sunlight and external visual connections. "Enclosed", "sealed" or "shut off from the outside" are alternative expressions that embody the idea of being without windows. Choosing the right synonym will ultimately depend on the desired tone and context of the description.